Abstract
If R R is a commutative integral domain with quotient field K K and x 1 , … , x n {x_1}, \ldots ,{x_n} are indeterminates, then there exist θ 1 , … , θ n {\theta _1}, \ldots ,{\theta _n} in K K such that dim R [ x 1 , … , x n ] = n + dim R [ θ 1 , … , θ n ] \dim R[{x_1}, \ldots ,{x_n}] = n + \dim R[{\theta _1}, \ldots ,{\theta _n}] .
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